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Keywords: Nested parameterisations, voxels, touchables
Forum: Geometry
Re: Question Accessing Parent Touchable in G4VNestedParameterisation (Jonathan)
Date: 11 Jul, 2006
From: Gabriele Cosmo <Gabriele Cosmo>

Hi Jonathan,

> The thing is, when I try to access the G4VTouchable *parentTouch that is passed, it is NULL
> more than 90% of the time and I cannot get any information about the ancestors. The pointers
> that are not NULL give me the copyNo's, but not near enough. In a 5^3 voxel array, I only get
> 7 pointers that are valid and can give me copy numbers.

I suggest you to open a problem report in the Geant4 Bugzilla system giving all the details of
the case and possibly a snippet of code of your geometry description in order to reproduce the

Cheers, Gabriele

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